Value Collection 34290 Hex Lock Nut 1-14 Unf Grade B

Product Description

The VALUE COLLECTION 34290 is a 1-14 UNF Grade B hex lock nut with a nylon insert, designed for threaded fastener applications where vibration resistance and secure clamping are required. Manufactured from steel with a zinc-plated finish for corrosion resistance, this nut measures 1-7/16 inches across the flats and stands 1-3/64 inches high. The nylon insert creates prevailing torque that resists loosening under vibration and dynamic loads, making it a reliable choice for mechanical assemblies, structural connections, and equipment maintenance applications. Plumbers, pipefitters, millwrights, and general maintenance technicians commonly use this style of fastener across a wide range of trade applications.

This hex lock nut is suited for use in residential and commercial mechanical assemblies where a 1-14 UNF fine-thread profile is specified. Fine-thread UNF fasteners provide higher tensile strength and improved torque characteristics compared to coarse-thread equivalents, making them well-matched to precision equipment, HVAC structural components, pump assemblies, and similar applications. The zinc-plated finish offers a basic level of protection in moderately exposed environments.

Key Features

• Nylon insert provides prevailing torque and resists loosening under vibration
• 1-14 UNF fine-thread profile for increased thread engagement and tensile strength
• Grade B steel construction for general industrial and trade use
• Zinc-plated finish for basic corrosion resistance
• 1-7/16 inch width across flats for standard hex wrench fitment
• 1-3/64 inch height for compact stack-up in tight assemblies

Compatibility

Designed as a standard 1-14 UNF Grade B hex lock nut with nylon insert, compatible with any 1-14 UNF externally threaded fastener or bolt requiring a prevailing-torque locking nut.

Installation Notes

Installation is performed by hand-threading the nut onto a 1-14 UNF threaded fastener, then torquing to specification with an appropriately sized hex wrench or socket. Power down or de-energize any equipment before servicing fastened assemblies on electrical or mechanical systems. Do not reuse nylon insert lock nuts in critical applications, as repeated cycling degrades the nylon insert and reduces prevailing torque performance. Follow applicable industry and equipment manufacturer torque specifications for the assembly.